The Effect of Repeated Microwaving Disinfection on the Dimensional Stability of Acrylic Dentures
Identifieur interne : 001673 ( Main/Exploration ); précédent : 001672; suivant : 001674The Effect of Repeated Microwaving Disinfection on the Dimensional Stability of Acrylic Dentures
Auteurs : Nick Polychronakis [Grèce] ; Stavros Yannikakis [Grèce] ; Alcibiades Zissis [Grèce]Source :
- Acta Stomatologica Croatica [ 0001-7019 ] ; 2014.
Abstract
The aim of this study was to evaluate the effect of repeated microwave disinfections on the dimensional stability of acrylic dentures.
Three groups of dentures made of a heat polymerized acrylic resin were tested. I: dentures kept in water (control group). II: dentures microwaved daily while being immersed into water (wet disinfection). III: dentures microwaved daily without being immersed into water (dry disinfection). Measurements were taken across three reference points, on two occasions: after curing and immersion in water for 24 hours, and one week later. Data obtained were analyzed using one-way analysis of variance (ANOVA) and Scheffe’s multiple range test.
The results showed that the microwave disinfection provokes dimensional changes of the same pattern (shrinkage). The dentures which underwent wet disinfection exhibited the greatest shrinkage (p<0.05).
Disinfection using microwave energy may cause dimensional changes (shrinkage) of complete dentures. The microwave “dry disinfection” method can be safely applied in everyday practice since the dimensional changes which occurred seem to be of no clinical significance.
Url:
DOI: 10.15644/asc48/4/5
PubMed: 27688376
PubMed Central: 4872816
Affiliations:
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Athens,<country>Greece</country></nlm:aff><country xml:lang="fr">Grèce</country><wicri:regionArea># see nlm:aff country strict</wicri:regionArea></affiliation></author><author><name sortKey="Zissis, Alcibiades" sort="Zissis, Alcibiades" uniqKey="Zissis A" first="Alcibiades" last="Zissis">Alcibiades Zissis</name><affiliation wicri:level="1"><nlm:aff id="aff3">Associate Professor, Division of Removable Prosthodontics, Dental School, National and Kapodistrian University of Athens,<country>Greece</country></nlm:aff><country xml:lang="fr">Grèce</country><wicri:regionArea># see nlm:aff country strict</wicri:regionArea></affiliation></author></titleStmt><publicationStmt><idno type="wicri:source">PMC</idno><idno type="pmid">27688376</idno><idno type="pmc">4872816</idno><idno type="url">http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4872816</idno><idno type="RBID">PMC:4872816</idno><idno type="doi">10.15644/asc48/4/5</idno><date when="2014">2014</date><idno 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Dentures</title><author><name sortKey="Polychronakis, Nick" sort="Polychronakis, Nick" uniqKey="Polychronakis N" first="Nick" last="Polychronakis">Nick Polychronakis</name><affiliation wicri:level="1"><nlm:aff id="aff1">Assistant Professor, Division of Removable Prosthodontics, Dental School, National and Kapodistrian University of Athens,<country>Greece</country></nlm:aff><country xml:lang="fr">Grèce</country><wicri:regionArea># see nlm:aff country strict</wicri:regionArea></affiliation></author><author><name sortKey="Yannikakis, Stavros" sort="Yannikakis, Stavros" uniqKey="Yannikakis S" first="Stavros" last="Yannikakis">Stavros Yannikakis</name><affiliation wicri:level="1"><nlm:aff id="aff2">Professor, Department of Dental Technology, Division of Removable Prosthodontics, Technological Educational Institution of Athens,<country>Greece</country></nlm:aff><country xml:lang="fr">Grèce</country><wicri:regionArea># see nlm:aff country strict</wicri:regionArea></affiliation></author><author><name sortKey="Zissis, Alcibiades" sort="Zissis, Alcibiades" uniqKey="Zissis A" first="Alcibiades" last="Zissis">Alcibiades Zissis</name><affiliation wicri:level="1"><nlm:aff id="aff3">Associate Professor, Division of Removable Prosthodontics, Dental School, National and Kapodistrian University of Athens,<country>Greece</country></nlm:aff><country xml:lang="fr">Grèce</country><wicri:regionArea># see nlm:aff country strict</wicri:regionArea></affiliation></author></analytic><series><title level="j">Acta Stomatologica Croatica</title><idno type="ISSN">0001-7019</idno><idno type="eISSN">1846-0410</idno><imprint><date when="2014">2014</date></imprint></series></biblStruct></sourceDesc></fileDesc><profileDesc><textClass></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en"><sec><title>Objective</title><p>The aim of this study was to evaluate the effect of repeated microwave disinfections on the dimensional stability of acrylic dentures.</p></sec><sec><title>Materials and Methods</title><p>Three groups of dentures made of a heat polymerized acrylic resin were tested. I: dentures kept in water (control group). II: dentures microwaved daily while being immersed into water (wet disinfection). III: dentures microwaved daily without being immersed into water (dry disinfection).
Measurements were taken across three reference points, on two occasions: after curing and immersion in water for 24 hours, and one week later.
Data obtained were analyzed using one-way analysis of variance (ANOVA) and Scheffe’s multiple range test.</p></sec><sec><title>Results</title><p>The results showed that the microwave disinfection provokes dimensional changes of the same pattern (shrinkage). The dentures which underwent wet disinfection exhibited the greatest shrinkage (p<0.05).</p></sec><sec><title>Conclusions</title><p>Disinfection using microwave energy may cause dimensional changes (shrinkage) of complete dentures.
The microwave “dry disinfection” method can be safely applied in everyday practice since the dimensional changes which occurred seem to be of no clinical significance.</p></sec></div></front></TEI><affiliations><list><country><li>Grèce</li></country></list><tree><country name="Grèce"><noRegion><name sortKey="Polychronakis, Nick" sort="Polychronakis, Nick" uniqKey="Polychronakis N" first="Nick" last="Polychronakis">Nick Polychronakis</name></noRegion><name sortKey="Yannikakis, Stavros" sort="Yannikakis, Stavros" uniqKey="Yannikakis S" first="Stavros" last="Yannikakis">Stavros Yannikakis</name><name sortKey="Zissis, Alcibiades" sort="Zissis, Alcibiades" uniqKey="Zissis A" first="Alcibiades" last="Zissis">Alcibiades Zissis</name></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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